EP 1749039 A1 20070207 - LOW MOLECULAR WEIGHT POLYLACTIC ACID POLYMERS
Title (en)
LOW MOLECULAR WEIGHT POLYLACTIC ACID POLYMERS
Title (de)
NIEDERMOLEKULARE POLYMILCHSÄUREPOLYMERE
Title (fr)
POLYMERES D"ACIDE POLYLACTIQUE DE FAIBLE POIDS MOLECULAIRE
Publication
Application
Priority
- US 2005014253 W 20050425
- US 56524604 P 20040423
Abstract (en)
[origin: US2005238618A1] The invention relates to a procedure for purifying low molecular weight polylactic acid polymers by use of reduced temperature liquid-liquid phase separation of the polymers in methanol, ethanol or isopropanol based solvents, compositions comprising the polymers and methods of using the same.
IPC 8 full level
C08G 63/08 (2006.01); A61K 9/14 (2006.01); A61K 9/50 (2006.01); A61K 31/765 (2006.01); C07C 7/00 (2006.01); C08G 63/90 (2006.01); A61K 9/16 (2006.01); A61K 47/34 (2006.01)
CPC (source: EP KR US)
A61K 31/765 (2013.01 - EP US); C08G 63/08 (2013.01 - EP KR US); C08G 63/88 (2013.01 - KR); C08G 63/89 (2013.01 - KR); C08G 63/90 (2013.01 - EP US); A61K 9/1647 (2013.01 - EP US); A61K 9/5031 (2013.01 - EP US); A61K 47/34 (2013.01 - EP US)
Citation (search report)
See references of WO 2005105886A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR LV MK YU
DOCDB simple family (publication)
US 2005238618 A1 20051027; AU 2005238511 A1 20051110; CA 2563957 A1 20051110; CN 1980974 A 20070613; EP 1749039 A1 20070207; IL 178793 A0 20070308; JP 2007534803 A 20071129; KR 20070036051 A 20070402; MX PA06012241 A 20070307; WO 2005105886 A1 20051110
DOCDB simple family (application)
US 11442905 A 20050425; AU 2005238511 A 20050425; CA 2563957 A 20050425; CN 200580021158 A 20050425; EP 05738714 A 20050425; IL 17879306 A 20061022; JP 2007509734 A 20050425; KR 20067024584 A 20061123; MX PA06012241 A 20050425; US 2005014253 W 20050425